66240424424642 has 16 divisors (see below), whose sum is σ = 107381867712000. Its totient is φ = 30464473529232.

The previous prime is 66240424424641. The next prime is 66240424424693. The reversal of 66240424424642 is 24642442404266.

It is not an unprimeable number, because it can be changed into a prime (66240424424641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4501244642 + ... + 4501259357.

It is an arithmetic number, because the mean of its divisors is an integer number (6711366732000).

Almost surely, 2^{66240424424642} is an apocalyptic number.

66240424424642 is a deficient number, since it is larger than the sum of its proper divisors (41141443287358).

66240424424642 is a wasteful number, since it uses less digits than its factorization.

66240424424642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9002504297.

The product of its (nonzero) digits is 14155776, while the sum is 50.

The spelling of 66240424424642 in words is "sixty-six trillion, two hundred forty billion, four hundred twenty-four million, four hundred twenty-four thousand, six hundred forty-two".